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Finding the Fourth Proportional to 248,759.70, 343,017.36 and 168,047.16

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Solution

The fourth proportional to 248,759.70, 343,017.36 and 168,047.16 is: 231,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,759.70 : 343,017.36 = 168,047.16 : x
  2. Step 2: Convert to fraction form
    248,759.70/343,017.36 = 168,047.16/x
  3. Step 3: Cross multiply
    248,759.70x = 343,017.36 × 168,047.16
  4. Step 4: Simplify right side
    248,759.70x = 57,643,093,178.70
  5. Step 5: Solve for x
    x = 57,643,093,178.70/248,759.70
  6. Step 6: Final answer
    x = 231,721.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.